PENTAIR MASTERTEMP 400 ERROR LIGHT LED EXPLAINED

WHAT DO THE ERROR LIGHTS/LEDS MEAN ON THE BACK OF THE CONTROL BOARD? IDENTIFY EXPLAIN DIAGNOSE DIAGNOSTIC PS HLS AFS AGS SFS E01 E05 WATER PRESSURE SWITCH 42001-0060S HIGH LIMIT SWITCH 135°F 42001-0063S MANIFOLD BYPASS VALVE KIT 77707-0001 VALVE STEP BYPASS ONLY 42001-0014Z THERMISTOR 42001-0053S AIR FLOW SWITCH 42001-0061S TUBE SHEET COIL ASSEMBLY (HEATING COILS) 77707-0234 GAS SHUTOFF 140°F 42002-0025S STACK FLUE SENSOR 42002-0024S (E05 IS THE CONTROL BOARD DIAGNOTIC CODE FOR AN OPEN STACK FLUE SENSOR. CHECK FOR CORRODED CONNECTORS, BROKEN WIRES TO THE STACK FLUE SENSOR OR REPLACE THE STACK FLUE SENSOR COMPLETELY IF YOU GET E05 ON YOUR DISPLAY)